The Commission has declined to fix the neotype of Helix papillaris Müller, 1774 as neotype for Turbo bidens Linnaeus, 1758. As a result, Turbo bidens is not a senior synonym of Helix papillaris (currently Papillifera papillaris). Instead the neotype for Turbo bidens designated by Kadolsky (2009) is allowed to stand.
Turbo bidens Linnaeus, 1758 (Gastropoda, clausiliidae): request to set aside the neotype not granted," The Bulletin of Zoological Nomenclature 72(2), 159-161, (1 June 2015). https://doi.org/10.21805/bzn.v72i2.a8